pub struct ByClause {
pub binder: Option<Ident>,
pub actors: Vec<Ident>,
pub span: Span,
}Expand description
The by (<binder>:)? <Actor> clause on a handler (v0.45; binder optional in
v0.50). Names the actor contract the handler consumes; when a binder is
given, the verified identity binds to it and is read as binder.identity.
Omitting the binder (by <Actor>) declares-and-verifies the contract without
capturing the identity — for anonymous or verify-and-discard handlers. Sits
after the protocol config and before the parameters.
Fields§
§binder: Option<Ident>The identity binder, if the handler consumes the identity. None for the
binder-less by <Actor> form. Required when actors names more than one
(a sum is resolved by matching on the bound actor).
actors: Vec<Ident>The actor contract(s) referenced — each a local actor decl or a prelude
actor. A single name is the ordinary single-actor handler; more than one
(by who: A | B, v0.52) is an ordered sum of peer actors resolved
first-wins, the body matching on the resolved actor. Always non-empty.
span: SpanImplementations§
Trait Implementations§
Auto Trait Implementations§
impl Freeze for ByClause
impl RefUnwindSafe for ByClause
impl Send for ByClause
impl Sync for ByClause
impl Unpin for ByClause
impl UnsafeUnpin for ByClause
impl UnwindSafe for ByClause
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